11320115105 has 16 divisors (see below), whose sum is σ = 14691877200. Its totient is φ = 8323580928.

The previous prime is 11320115099. The next prime is 11320115119. The reversal of 11320115105 is 50151102311.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1038966289 + 10281148816 = 32233^2 + 101396^2 .

It is not a de Polignac number, because 11320115105 - 2⁶ = 11320115041 is a prime.

It is a super-2 number, since 2×11320115105² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358580 + ... + 388869.

It is an arithmetic number, because the mean of its divisors is an integer number (918242325).

Almost surely, 2^11320115105 is an apocalyptic number.

It is an amenable number.

11320115105 is a deficient number, since it is larger than the sum of its proper divisors (3371762095).

11320115105 is a wasteful number, since it uses less digits than its factorization.

11320115105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747700.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 11320115105 its reverse (50151102311), we get a palindrome (61471217416).

The spelling of 11320115105 in words is "eleven billion, three hundred twenty million, one hundred fifteen thousand, one hundred five".